Hello,

I believe the issue is that typically on idle an application does not consume energy, it is in wait mode and restart when an I/O event is triggered.

For Pharo, I/O event does not restart the Process, on idle, the Process waits for 1 ms, then checks if I/O event was triggered, and if nothing happened, waits again a ms.

We wants to fix that in the future but it is difficult it requires to change the Process implementation which is implemented half in the VM half in the image ....

I am not sure it is related to Morphic.

2014-08-10 20:10 GMT+02:00 kilon alios <kilon.alios@gmail.com>:

I have just upgraded my macbook air to Mavericks and I noticed now that Activity Monitor has an energy tab that shows which apps consume most energy and Pharo is ��on No1 spot for idle apps.

1) Pharo - > 50-60%

2) Chrome (7 tabs open) -> 10%

3) Blender (3d app) -> 15%

emacs, itunes , maps etc close to 0%

The only way to compete with pharo is playback a youtube video that spikes energy to 80 or play a 3d game.��

I assume Morphic is quite heavy on resources.